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                                            Form validation used to occur at the server, after the client had entered all necessary data and then pressed the Submit button.                                                

                                            Scripting makes Web pages more dynamic) For example, without reloading a new version of a page it may allow modifications to the content of that page, or allow content to be added to or sent from that page. The former has been called DHTML (Dynamic HTML), and the latter AJAX (Asynchronous JavaScript and XML).                                                

                                            XMLHttpRequest makes it possible to load additional content from the Web without loading a new document, a core component of AJAX.                                                

                                            The Geolocation API makes the user’s current location available to browser-based applications.                                                

                                            WAI ARIA offers mechanisms to ensure that this additional interactivity remains usable independent of devices and disabilities.                                                

                                            An API may describe the ways in which a particular task is performed.                                                

                                            The event onAirEvent is fired when the player starts playing content being broadcasted on the channel.                                                

                                            The event disconnectionEvent is fired when the player disconnects from the channel, whether a result of user interaction or not.